It looks like you just might be able to get the DSCW1 before the end of May. is showing the camera for sale and states that deliveries will begin on May 4.

The DSCW1 and the DSCP100 appear to be very much alike except for the physical size and shape.

Reviews for both have been very good and show that they are very responsive for action shots. They are stating a delay of only 0.2 seconds and that includes auto focus lock.